./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eebc57bb84d5e49c07b21e35f27ee095cb699b6ae996e22651132239fcb21755 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:32:23,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:32:23,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:32:23,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:32:23,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:32:23,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:32:23,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:32:23,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:32:23,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:32:23,825 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:32:23,826 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:32:23,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:32:23,829 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:32:23,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:32:23,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:32:23,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:32:23,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:32:23,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:32:23,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:32:23,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:32:23,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:32:23,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:32:23,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:32:23,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:32:23,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:32:23,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:32:23,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:32:23,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:32:23,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:32:23,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:32:23,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:32:23,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:32:23,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:32:23,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:32:23,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:32:23,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:32:23,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:32:23,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:32:23,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:32:23,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:32:23,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:32:23,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:32:23,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:32:23,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:32:23,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:32:23,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:32:23,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:32:23,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:32:23,943 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:32:23,943 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:32:23,943 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:32:23,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:32:23,945 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:32:23,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:32:23,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:32:23,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:32:23,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:32:23,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:32:23,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:32:23,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:32:23,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:32:23,947 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:32:23,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:32:23,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:32:23,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:32:23,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:32:23,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:32:23,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:32:23,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:32:23,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:32:23,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:32:23,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:32:23,952 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:32:23,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:32:23,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:32:23,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eebc57bb84d5e49c07b21e35f27ee095cb699b6ae996e22651132239fcb21755 [2022-11-18 20:32:24,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:32:24,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:32:24,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:32:24,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:32:24,366 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:32:24,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c [2022-11-18 20:32:24,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/data/209d9b0f7/5ee7a175534345e58b3d34bd3626730c/FLAG4c8e61748 [2022-11-18 20:32:25,723 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:32:25,724 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c [2022-11-18 20:32:25,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/data/209d9b0f7/5ee7a175534345e58b3d34bd3626730c/FLAG4c8e61748 [2022-11-18 20:32:25,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/data/209d9b0f7/5ee7a175534345e58b3d34bd3626730c [2022-11-18 20:32:25,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:32:25,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:32:25,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:32:25,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:32:25,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:32:25,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:32:25" (1/1) ... [2022-11-18 20:32:25,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e364570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:25, skipping insertion in model container [2022-11-18 20:32:25,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:32:25" (1/1) ... [2022-11-18 20:32:25,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:32:26,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:32:28,489 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[381679,381692] [2022-11-18 20:32:28,519 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[383339,383352] [2022-11-18 20:32:28,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:32:28,877 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:32:30,164 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[381679,381692] [2022-11-18 20:32:30,169 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/sv-benchmarks/c/combinations/Problem05_label43+token_ring.15.cil.c[383339,383352] [2022-11-18 20:32:30,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:32:30,293 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:32:30,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30 WrapperNode [2022-11-18 20:32:30,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:32:30,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:32:30,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:32:30,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:32:30,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:30,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:30,894 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13260 [2022-11-18 20:32:30,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:32:30,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:32:30,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:32:30,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:32:30,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:30,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:30,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:30,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:31,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:31,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:31,336 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:31,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:31,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:32:31,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:32:31,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:32:31,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:32:31,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (1/1) ... [2022-11-18 20:32:31,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:32:31,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:31,532 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:32:31,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d18cee9e-8096-4ea8-bef8-a1b6b316ee39/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:32:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:32:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-18 20:32:31,624 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-18 20:32:31,624 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-18 20:32:31,625 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-18 20:32:31,625 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-18 20:32:31,625 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-18 20:32:31,625 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-11-18 20:32:31,625 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-11-18 20:32:31,625 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-18 20:32:31,625 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-18 20:32:31,625 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-18 20:32:31,626 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-18 20:32:31,626 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-18 20:32:31,626 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-18 20:32:31,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:32:31,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:32:31,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:32:31,876 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:32:31,879 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:32:42,130 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:32:42,167 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:32:42,168 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-18 20:32:42,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:32:42 BoogieIcfgContainer [2022-11-18 20:32:42,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:32:42,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:32:42,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:32:42,179 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:32:42,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:32:25" (1/3) ... [2022-11-18 20:32:42,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e30b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:32:42, skipping insertion in model container [2022-11-18 20:32:42,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:32:30" (2/3) ... [2022-11-18 20:32:42,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e30b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:32:42, skipping insertion in model container [2022-11-18 20:32:42,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:32:42" (3/3) ... [2022-11-18 20:32:42,183 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.15.cil.c [2022-11-18 20:32:42,204 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:32:42,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:32:42,323 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:32:42,331 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16db9242, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:32:42,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:32:42,347 INFO L276 IsEmpty]: Start isEmpty. Operand has 2596 states, 2557 states have (on average 1.8420023464998045) internal successors, (4710), 2562 states have internal predecessors, (4710), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-11-18 20:32:42,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:32:42,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:42,376 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:42,377 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:42,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:42,384 INFO L85 PathProgramCache]: Analyzing trace with hash -842334402, now seen corresponding path program 1 times [2022-11-18 20:32:42,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:42,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134175169] [2022-11-18 20:32:42,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:42,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:42,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:32:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:43,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:32:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:32:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:43,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:32:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:43,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:32:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:43,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:43,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:43,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134175169] [2022-11-18 20:32:43,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134175169] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:43,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:43,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:32:43,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033650822] [2022-11-18 20:32:43,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:43,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:32:43,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:43,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:32:43,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:32:43,497 INFO L87 Difference]: Start difference. First operand has 2596 states, 2557 states have (on average 1.8420023464998045) internal successors, (4710), 2562 states have internal predecessors, (4710), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:32:46,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:46,627 INFO L93 Difference]: Finished difference Result 5336 states and 9785 transitions. [2022-11-18 20:32:46,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:32:46,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:32:46,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:46,665 INFO L225 Difference]: With dead ends: 5336 [2022-11-18 20:32:46,674 INFO L226 Difference]: Without dead ends: 2681 [2022-11-18 20:32:46,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:32:46,698 INFO L413 NwaCegarLoop]: 4399 mSDtfsCounter, 1121 mSDsluCounter, 12501 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 16900 SdHoareTripleChecker+Invalid, 1176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:46,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 16900 Invalid, 1176 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [62 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-18 20:32:46,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-11-18 20:32:47,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2528. [2022-11-18 20:32:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2491 states have (on average 1.8245684464070655) internal successors, (4545), 2494 states have internal predecessors, (4545), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-18 20:32:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 4601 transitions. [2022-11-18 20:32:47,046 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 4601 transitions. Word has length 190 [2022-11-18 20:32:47,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:47,047 INFO L495 AbstractCegarLoop]: Abstraction has 2528 states and 4601 transitions. [2022-11-18 20:32:47,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:32:47,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 4601 transitions. [2022-11-18 20:32:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:32:47,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:47,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:47,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:32:47,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:47,069 INFO L85 PathProgramCache]: Analyzing trace with hash -26287172, now seen corresponding path program 1 times [2022-11-18 20:32:47,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:47,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886619673] [2022-11-18 20:32:47,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:47,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:47,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:47,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:32:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:32:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:47,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:32:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:32:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:47,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:32:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:47,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:47,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886619673] [2022-11-18 20:32:47,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886619673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:47,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:47,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:32:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932849571] [2022-11-18 20:32:47,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:47,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:32:47,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:47,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:32:47,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:32:47,398 INFO L87 Difference]: Start difference. First operand 2528 states and 4601 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:32:50,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:50,390 INFO L93 Difference]: Finished difference Result 3071 states and 5479 transitions. [2022-11-18 20:32:50,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:32:50,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:32:50,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:50,402 INFO L225 Difference]: With dead ends: 3071 [2022-11-18 20:32:50,402 INFO L226 Difference]: Without dead ends: 2681 [2022-11-18 20:32:50,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:32:50,406 INFO L413 NwaCegarLoop]: 4329 mSDtfsCounter, 1107 mSDsluCounter, 12298 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 16627 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:50,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 16627 Invalid, 1175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-18 20:32:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-11-18 20:32:50,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2528. [2022-11-18 20:32:50,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2528 states, 2491 states have (on average 1.8241670012043356) internal successors, (4544), 2494 states have internal predecessors, (4544), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-11-18 20:32:50,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2528 states to 2528 states and 4600 transitions. [2022-11-18 20:32:50,521 INFO L78 Accepts]: Start accepts. Automaton has 2528 states and 4600 transitions. Word has length 190 [2022-11-18 20:32:50,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:50,522 INFO L495 AbstractCegarLoop]: Abstraction has 2528 states and 4600 transitions. [2022-11-18 20:32:50,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:32:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2528 states and 4600 transitions. [2022-11-18 20:32:50,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:32:50,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:50,527 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:50,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:32:50,527 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:50,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:50,528 INFO L85 PathProgramCache]: Analyzing trace with hash -674879942, now seen corresponding path program 1 times [2022-11-18 20:32:50,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:50,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64891786] [2022-11-18 20:32:50,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:50,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:32:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:32:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:32:50,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:32:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:32:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:50,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:50,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64891786] [2022-11-18 20:32:50,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64891786] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:50,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:50,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:32:50,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437357648] [2022-11-18 20:32:50,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:50,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:32:50,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:32:50,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:32:50,954 INFO L87 Difference]: Start difference. First operand 2528 states and 4600 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:32:56,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:56,015 INFO L93 Difference]: Finished difference Result 3626 states and 6383 transitions. [2022-11-18 20:32:56,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:32:56,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:32:56,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:56,031 INFO L225 Difference]: With dead ends: 3626 [2022-11-18 20:32:56,031 INFO L226 Difference]: Without dead ends: 3240 [2022-11-18 20:32:56,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:32:56,035 INFO L413 NwaCegarLoop]: 4334 mSDtfsCounter, 5644 mSDsluCounter, 12901 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5664 SdHoareTripleChecker+Valid, 17235 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:56,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5664 Valid, 17235 Invalid, 2673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-18 20:32:56,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3240 states. [2022-11-18 20:32:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3240 to 2933. [2022-11-18 20:32:56,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 2867 states have (on average 1.795256365538891) internal successors, (5147), 2871 states have internal predecessors, (5147), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-11-18 20:32:56,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 5250 transitions. [2022-11-18 20:32:56,256 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 5250 transitions. Word has length 190 [2022-11-18 20:32:56,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:56,256 INFO L495 AbstractCegarLoop]: Abstraction has 2933 states and 5250 transitions. [2022-11-18 20:32:56,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:32:56,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 5250 transitions. [2022-11-18 20:32:56,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:32:56,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:56,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:56,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:32:56,262 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:56,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:56,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1773060918, now seen corresponding path program 1 times [2022-11-18 20:32:56,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:56,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433139754] [2022-11-18 20:32:56,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:56,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:56,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:32:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:32:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:56,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:32:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:32:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:56,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:32:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:56,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:32:56,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:56,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433139754] [2022-11-18 20:32:56,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433139754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:56,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:32:56,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:32:56,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217489480] [2022-11-18 20:32:56,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:56,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:32:56,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:56,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:32:56,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:32:56,673 INFO L87 Difference]: Start difference. First operand 2933 states and 5250 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:03,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:03,300 INFO L93 Difference]: Finished difference Result 4610 states and 7978 transitions. [2022-11-18 20:33:03,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:33:03,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:33:03,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:03,323 INFO L225 Difference]: With dead ends: 4610 [2022-11-18 20:33:03,323 INFO L226 Difference]: Without dead ends: 3819 [2022-11-18 20:33:03,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:33:03,330 INFO L413 NwaCegarLoop]: 4558 mSDtfsCounter, 5689 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5709 SdHoareTripleChecker+Valid, 22434 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:03,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5709 Valid, 22434 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-18 20:33:03,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3819 states. [2022-11-18 20:33:03,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3819 to 3309. [2022-11-18 20:33:03,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3309 states, 3214 states have (on average 1.7710018668326073) internal successors, (5692), 3219 states have internal predecessors, (5692), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-11-18 20:33:03,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 5841 transitions. [2022-11-18 20:33:03,579 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 5841 transitions. Word has length 190 [2022-11-18 20:33:03,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:03,580 INFO L495 AbstractCegarLoop]: Abstraction has 3309 states and 5841 transitions. [2022-11-18 20:33:03,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:03,580 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 5841 transitions. [2022-11-18 20:33:03,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:33:03,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:03,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:03,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:33:03,584 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:03,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:03,585 INFO L85 PathProgramCache]: Analyzing trace with hash -150189512, now seen corresponding path program 1 times [2022-11-18 20:33:03,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:03,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135413226] [2022-11-18 20:33:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:03,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:33:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:03,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:33:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:04,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:33:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:33:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:04,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:33:04,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:04,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:04,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:04,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135413226] [2022-11-18 20:33:04,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135413226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:04,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:04,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:33:04,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416932798] [2022-11-18 20:33:04,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:04,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:33:04,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:04,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:04,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:04,069 INFO L87 Difference]: Start difference. First operand 3309 states and 5841 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:11,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:11,039 INFO L93 Difference]: Finished difference Result 6060 states and 10309 transitions. [2022-11-18 20:33:11,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:33:11,040 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:33:11,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:11,065 INFO L225 Difference]: With dead ends: 6060 [2022-11-18 20:33:11,066 INFO L226 Difference]: Without dead ends: 4893 [2022-11-18 20:33:11,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:33:11,074 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5683 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3839 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5703 SdHoareTripleChecker+Valid, 22432 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:11,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5703 Valid, 22432 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3839 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-18 20:33:11,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2022-11-18 20:33:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4065. [2022-11-18 20:33:11,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4065 states, 3912 states have (on average 1.7354294478527608) internal successors, (6789), 3919 states have internal predecessors, (6789), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-11-18 20:33:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4065 states to 4065 states and 7034 transitions. [2022-11-18 20:33:11,533 INFO L78 Accepts]: Start accepts. Automaton has 4065 states and 7034 transitions. Word has length 190 [2022-11-18 20:33:11,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:11,534 INFO L495 AbstractCegarLoop]: Abstraction has 4065 states and 7034 transitions. [2022-11-18 20:33:11,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:11,535 INFO L276 IsEmpty]: Start isEmpty. Operand 4065 states and 7034 transitions. [2022-11-18 20:33:11,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:33:11,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:11,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:11,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:33:11,541 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:11,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:11,541 INFO L85 PathProgramCache]: Analyzing trace with hash 348367290, now seen corresponding path program 1 times [2022-11-18 20:33:11,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:11,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578809020] [2022-11-18 20:33:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:11,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:33:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:33:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:33:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:33:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:12,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:33:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:12,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:12,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578809020] [2022-11-18 20:33:12,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578809020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:12,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:12,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:33:12,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81795177] [2022-11-18 20:33:12,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:12,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:33:12,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:12,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:12,070 INFO L87 Difference]: Start difference. First operand 4065 states and 7034 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:18,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:18,896 INFO L93 Difference]: Finished difference Result 8854 states and 14770 transitions. [2022-11-18 20:33:18,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:33:18,897 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:33:18,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:18,931 INFO L225 Difference]: With dead ends: 8854 [2022-11-18 20:33:18,931 INFO L226 Difference]: Without dead ends: 6931 [2022-11-18 20:33:18,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:33:18,941 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5682 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3826 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5702 SdHoareTripleChecker+Valid, 22432 SdHoareTripleChecker+Invalid, 3897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:18,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5702 Valid, 22432 Invalid, 3897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3826 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-18 20:33:18,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2022-11-18 20:33:19,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 5578. [2022-11-18 20:33:19,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5578 states, 5309 states have (on average 1.6920323978150311) internal successors, (8983), 5320 states have internal predecessors, (8983), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-11-18 20:33:19,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5578 states to 5578 states and 9426 transitions. [2022-11-18 20:33:19,683 INFO L78 Accepts]: Start accepts. Automaton has 5578 states and 9426 transitions. Word has length 190 [2022-11-18 20:33:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:19,684 INFO L495 AbstractCegarLoop]: Abstraction has 5578 states and 9426 transitions. [2022-11-18 20:33:19,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5578 states and 9426 transitions. [2022-11-18 20:33:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:33:19,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:19,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:19,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:33:19,691 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:19,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:19,692 INFO L85 PathProgramCache]: Analyzing trace with hash 918639096, now seen corresponding path program 1 times [2022-11-18 20:33:19,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:19,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503082756] [2022-11-18 20:33:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:19,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:19,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:33:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:19,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:33:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:20,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:33:20,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:20,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:33:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:20,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:33:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:20,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:20,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503082756] [2022-11-18 20:33:20,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503082756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:20,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:20,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:33:20,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139835221] [2022-11-18 20:33:20,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:20,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:33:20,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:20,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:20,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:20,144 INFO L87 Difference]: Start difference. First operand 5578 states and 9426 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:27,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:27,752 INFO L93 Difference]: Finished difference Result 14441 states and 23708 transitions. [2022-11-18 20:33:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:33:27,753 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:33:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:27,799 INFO L225 Difference]: With dead ends: 14441 [2022-11-18 20:33:27,799 INFO L226 Difference]: Without dead ends: 11005 [2022-11-18 20:33:27,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:33:27,818 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5681 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3813 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5701 SdHoareTripleChecker+Valid, 22432 SdHoareTripleChecker+Invalid, 3884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:27,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5701 Valid, 22432 Invalid, 3884 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3813 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-11-18 20:33:27,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11005 states. [2022-11-18 20:33:29,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11005 to 8611. [2022-11-18 20:33:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8611 states, 8110 states have (on average 1.6499383477188656) internal successors, (13381), 8129 states have internal predecessors, (13381), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-11-18 20:33:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8611 states to 8611 states and 14238 transitions. [2022-11-18 20:33:29,175 INFO L78 Accepts]: Start accepts. Automaton has 8611 states and 14238 transitions. Word has length 190 [2022-11-18 20:33:29,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:29,176 INFO L495 AbstractCegarLoop]: Abstraction has 8611 states and 14238 transitions. [2022-11-18 20:33:29,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 8611 states and 14238 transitions. [2022-11-18 20:33:29,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:33:29,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:29,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:29,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:33:29,187 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:29,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:29,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1972459014, now seen corresponding path program 1 times [2022-11-18 20:33:29,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:29,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331705992] [2022-11-18 20:33:29,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:29,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:29,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:33:29,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:29,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:33:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:29,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:33:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:29,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:33:29,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:29,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:33:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:29,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:29,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331705992] [2022-11-18 20:33:29,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331705992] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:29,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:29,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:33:29,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542631934] [2022-11-18 20:33:29,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:29,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:33:29,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:29,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:29,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:29,500 INFO L87 Difference]: Start difference. First operand 8611 states and 14238 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:37,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:37,376 INFO L93 Difference]: Finished difference Result 25616 states and 41646 transitions. [2022-11-18 20:33:37,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:33:37,377 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:33:37,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:37,459 INFO L225 Difference]: With dead ends: 25616 [2022-11-18 20:33:37,459 INFO L226 Difference]: Without dead ends: 19147 [2022-11-18 20:33:37,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:33:37,489 INFO L413 NwaCegarLoop]: 4339 mSDtfsCounter, 5794 mSDsluCounter, 17172 mSDsCounter, 0 mSdLazyCounter, 3383 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5814 SdHoareTripleChecker+Valid, 21511 SdHoareTripleChecker+Invalid, 3494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:37,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5814 Valid, 21511 Invalid, 3494 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [111 Valid, 3383 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-11-18 20:33:37,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19147 states. [2022-11-18 20:33:39,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19147 to 14692. [2022-11-18 20:33:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14692 states, 13727 states have (on average 1.6171778247249946) internal successors, (22199), 13762 states have internal predecessors, (22199), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-18 20:33:39,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14692 states to 14692 states and 23938 transitions. [2022-11-18 20:33:39,434 INFO L78 Accepts]: Start accepts. Automaton has 14692 states and 23938 transitions. Word has length 190 [2022-11-18 20:33:39,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:39,435 INFO L495 AbstractCegarLoop]: Abstraction has 14692 states and 23938 transitions. [2022-11-18 20:33:39,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:39,436 INFO L276 IsEmpty]: Start isEmpty. Operand 14692 states and 23938 transitions. [2022-11-18 20:33:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:33:39,463 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:39,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:39,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:33:39,464 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:39,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:39,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1536510392, now seen corresponding path program 1 times [2022-11-18 20:33:39,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:39,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201924163] [2022-11-18 20:33:39,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:39,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:33:39,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:33:39,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:39,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:33:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:33:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:39,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:33:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:39,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:39,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201924163] [2022-11-18 20:33:39,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201924163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:39,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:39,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:33:39,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729786361] [2022-11-18 20:33:39,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:39,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:33:39,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:39,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:39,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:39,816 INFO L87 Difference]: Start difference. First operand 14692 states and 23938 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:45,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:33:45,090 INFO L93 Difference]: Finished difference Result 31976 states and 52109 transitions. [2022-11-18 20:33:45,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:33:45,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:33:45,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:33:45,175 INFO L225 Difference]: With dead ends: 31976 [2022-11-18 20:33:45,175 INFO L226 Difference]: Without dead ends: 19426 [2022-11-18 20:33:45,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 20:33:45,225 INFO L413 NwaCegarLoop]: 4282 mSDtfsCounter, 5369 mSDsluCounter, 12675 mSDsCounter, 0 mSdLazyCounter, 1775 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5390 SdHoareTripleChecker+Valid, 16957 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:33:45,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5390 Valid, 16957 Invalid, 1876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 1775 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 20:33:45,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19426 states. [2022-11-18 20:33:47,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19426 to 14692. [2022-11-18 20:33:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14692 states, 13727 states have (on average 1.6147738034530488) internal successors, (22166), 13762 states have internal predecessors, (22166), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-11-18 20:33:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14692 states to 14692 states and 23905 transitions. [2022-11-18 20:33:47,506 INFO L78 Accepts]: Start accepts. Automaton has 14692 states and 23905 transitions. Word has length 190 [2022-11-18 20:33:47,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:33:47,507 INFO L495 AbstractCegarLoop]: Abstraction has 14692 states and 23905 transitions. [2022-11-18 20:33:47,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:33:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 14692 states and 23905 transitions. [2022-11-18 20:33:47,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:33:47,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:33:47,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:33:47,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:33:47,519 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:33:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:33:47,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2091075014, now seen corresponding path program 1 times [2022-11-18 20:33:47,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:33:47,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309456467] [2022-11-18 20:33:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:33:47,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:33:47,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:47,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:33:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:47,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:33:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:47,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:33:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:47,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:33:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:47,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:33:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:33:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:33:47,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:33:47,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309456467] [2022-11-18 20:33:47,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309456467] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:33:47,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:33:47,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:33:47,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220781777] [2022-11-18 20:33:47,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:33:47,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:33:47,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:33:47,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:33:47,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:33:47,842 INFO L87 Difference]: Start difference. First operand 14692 states and 23905 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:34:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:01,803 INFO L93 Difference]: Finished difference Result 47933 states and 77484 transitions. [2022-11-18 20:34:01,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:34:01,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:34:01,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:01,956 INFO L225 Difference]: With dead ends: 47933 [2022-11-18 20:34:01,956 INFO L226 Difference]: Without dead ends: 35383 [2022-11-18 20:34:01,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:34:01,996 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5672 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5692 SdHoareTripleChecker+Valid, 22432 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:01,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5692 Valid, 22432 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-11-18 20:34:02,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35383 states. [2022-11-18 20:34:06,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35383 to 26918. [2022-11-18 20:34:06,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26918 states, 25025 states have (on average 1.5924075924075924) internal successors, (39850), 25092 states have internal predecessors, (39850), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-11-18 20:34:06,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26918 states to 26918 states and 43515 transitions. [2022-11-18 20:34:06,552 INFO L78 Accepts]: Start accepts. Automaton has 26918 states and 43515 transitions. Word has length 190 [2022-11-18 20:34:06,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:06,553 INFO L495 AbstractCegarLoop]: Abstraction has 26918 states and 43515 transitions. [2022-11-18 20:34:06,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:34:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 26918 states and 43515 transitions. [2022-11-18 20:34:06,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:34:06,571 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:06,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:06,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:34:06,572 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:06,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:06,573 INFO L85 PathProgramCache]: Analyzing trace with hash 8663416, now seen corresponding path program 1 times [2022-11-18 20:34:06,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:06,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051702635] [2022-11-18 20:34:06,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:06,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:06,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:34:06,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:06,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:34:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:34:06,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:06,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:34:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:07,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:34:07,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:07,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:07,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:07,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051702635] [2022-11-18 20:34:07,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051702635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:34:07,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:34:07,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:34:07,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247043854] [2022-11-18 20:34:07,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:34:07,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:34:07,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:07,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:34:07,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:34:07,011 INFO L87 Difference]: Start difference. First operand 26918 states and 43515 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:34:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:34:27,103 INFO L93 Difference]: Finished difference Result 92637 states and 150036 transitions. [2022-11-18 20:34:27,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:34:27,104 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-11-18 20:34:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:34:27,373 INFO L225 Difference]: With dead ends: 92637 [2022-11-18 20:34:27,374 INFO L226 Difference]: Without dead ends: 67861 [2022-11-18 20:34:27,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-11-18 20:34:27,452 INFO L413 NwaCegarLoop]: 4556 mSDtfsCounter, 5677 mSDsluCounter, 17876 mSDsCounter, 0 mSdLazyCounter, 3744 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5697 SdHoareTripleChecker+Valid, 22432 SdHoareTripleChecker+Invalid, 3815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 3744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:34:27,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5697 Valid, 22432 Invalid, 3815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [71 Valid, 3744 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-11-18 20:34:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67861 states. [2022-11-18 20:34:35,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67861 to 51431. [2022-11-18 20:34:35,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51431 states, 47682 states have (on average 1.57938005956126) internal successors, (75308), 47813 states have internal predecessors, (75308), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-11-18 20:34:35,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51431 states to 51431 states and 83311 transitions. [2022-11-18 20:34:35,912 INFO L78 Accepts]: Start accepts. Automaton has 51431 states and 83311 transitions. Word has length 190 [2022-11-18 20:34:35,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:34:35,912 INFO L495 AbstractCegarLoop]: Abstraction has 51431 states and 83311 transitions. [2022-11-18 20:34:35,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 20:34:35,913 INFO L276 IsEmpty]: Start isEmpty. Operand 51431 states and 83311 transitions. [2022-11-18 20:34:35,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-11-18 20:34:35,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:34:35,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:34:35,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:34:35,953 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:34:35,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:34:35,954 INFO L85 PathProgramCache]: Analyzing trace with hash 353491578, now seen corresponding path program 1 times [2022-11-18 20:34:35,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:34:35,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113635495] [2022-11-18 20:34:35,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:34:35,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:34:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:36,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:34:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 20:34:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-18 20:34:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:36,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:34:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-18 20:34:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:34:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:34:36,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:34:36,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113635495] [2022-11-18 20:34:36,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113635495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:34:36,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:34:36,337 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:34:36,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410231495] [2022-11-18 20:34:36,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:34:36,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:34:36,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:34:36,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:34:36,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:34:36,339 INFO L87 Difference]: Start difference. First operand 51431 states and 83311 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)